Qt auto scale factor for HiDPI displays (#291)

Signed-off-by: Mabel Zhang <[email protected]>
gazebosim · Aug 20, 2020 · 1bc1f2d · 1bc1f2d
1 parent 8ec8d66
commit 1bc1f2d
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/gui/Gui.cc b/src/gui/Gui.cc
@@ -53,6 +53,12 @@ std::unique_ptr<ignition::gui::Application> createGui(
   ignmsg << "Ignition Gazebo GUI    v" << IGNITION_GAZEBO_VERSION_FULL
          << std::endl;
 
+  // Set auto scaling factor for HiDPI displays
+  if (QString::fromLocal8Bit(qgetenv("QT_AUTO_SCREEN_SCALE_FACTOR")).isEmpty())
+  {
+    qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", "1");
+  }
+
   // Initialize Qt app
   auto app = std::make_unique<ignition::gui::Application>(_argc, _argv);
   app->AddPluginPath(IGN_GAZEBO_GUI_PLUGIN_INSTALL_DIR);